[Kotlin] Add Kotlin Multiplatform (KMP) Support

### Feature Request

From the current [Kotlin README](https://github.com/apache/fury/blob/main/kotlin/README.md), Fury's Kotlin integration is described as "This provides additional Fury support for Kotlin Serialization on **JVM**".

With the increasing adoption of KMP (Kotlin Multiplatform) in cross-platform solutions—especially for shared Android/iOS codebases—it would be valuable for Fury to support KMP serialization. This could position Fury as a high-performance alternative to JSON and Protocol Buffers in cross-platform scenarios.

To minimize implementation effort, one possible approach is to leverage Kotlin’s expect/actual mechanism for shared logic while reusing Fury’s C++ native components (via Kotlin/Native interoperability) for iOS targets.

### Is your feature request related to a problem? Please describe

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### Describe the solution you'd like

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### Describe alternatives you've considered

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### Additional context

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